... Radio 2, USB disk, Micro SD/MMC card 3, Rechargeable 4,RMS: 11 Watts 2012 hot selling high powered 2 Way ... Plastic Speaker Box Features:1, NEWEST 2.1 multimedia speaker2, With ... power-supplyTechnical parameterSupport MPEG-1,MPEG-2,MPEG-2.5 audio format decoding and 8 ... ≥90dB Stereo Isolution: 75dBDrive units: (2.5" 4ohm full range frequency) * 2(L/R) (3" 2ohm bass frequency ...